lttng-ust-java-tests-log4j/src/test/java/org/lttng/ust/agent/integration/events/Log4jListEventsIT.java

   1 /*
   2  * Copyright (C) 2015, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 package org.lttng.ust.agent.integration.events;
  20
  21 import java.io.IOException;
  22
  23 import org.apache.log4j.Appender;
  24 import org.apache.log4j.LogManager;
  25 import org.apache.log4j.Logger;
  26 import org.junit.jupiter.api.AfterAll;
  27 import org.junit.jupiter.api.AfterEach;
  28 import org.junit.jupiter.api.BeforeAll;
  29 import org.junit.jupiter.api.BeforeEach;
  30 import org.junit.jupiter.api.Tag;
  31 import org.lttng.tools.ILttngSession;
  32 import org.lttng.ust.agent.log4j.LttngLogAppender;
  33 import org.lttng.ust.agent.utils.Log4jTestUtils;
  34
  35 /**
  36  * Test suite for the list events command for the log4j domain
  37  */
  38 @Tag("agent:log4j")
  39 @Tag("domain:log4j")
  40 public class Log4jListEventsIT extends ListEventsITBase {
  41
  42     private Logger[] loggers;
  43     private Appender[] appenders;
  44
  45     /**
  46      * Class setup
  47      */
  48     @BeforeAll
  49     public static void log4jClassSetup() {
  50         Log4jTestUtils.testClassSetup();
  51     }
  52
  53     /**
  54      * Class cleanup
  55      */
  56     @AfterAll
  57     public static void log4jClassCleanup() {
  58         Log4jTestUtils.testClassCleanup();
  59     }
  60
  61     /**
  62      * Test setup
  63      *
  64      * @throws SecurityException
  65      * @throws IOException
  66      */
  67     @BeforeEach
  68     public void log4jSetup() throws SecurityException, IOException {
  69         /* Try clearing the log4j logger configuration */
  70         LogManager.resetConfiguration();
  71         System.gc();
  72
  73         loggers = new Logger[] {
  74                 Logger.getLogger(LOGGER_NAME_1),
  75                 Logger.getLogger(LOGGER_NAME_2),
  76                 Logger.getLogger(LOGGER_NAME_3)
  77         };
  78
  79         appenders = new Appender[] {
  80                 new LttngLogAppender(),
  81                 new LttngLogAppender()
  82         };
  83     }
  84
  85     /**
  86      * Test teardown. Detach and close all log handlers.
  87      */
  88     @AfterEach
  89     public void log4jTeardown() {
  90         for (Logger logger : loggers) {
  91             for (Appender appender : appenders) {
  92                 logger.removeAppender(appender);
  93             }
  94         }
  95
  96         for (Appender appender : appenders) {
  97             appender.close();
  98         }
  99         appenders = null;
 100         loggers = null;
 101     }
 102
 103     @Override
 104     protected ILttngSession.Domain getDomain() {
 105         return ILttngSession.Domain.LOG4J;
 106     }
 107
 108     @Override
 109     protected void attachHandlerToLogger(int handlerIndex, int loggerIndex) {
 110         loggers[loggerIndex - 1].addAppender(appenders[handlerIndex - 1]);
 111     }
 112
 113     @Override
 114     protected void detachHandlerFromLogger(int handlerIndex, int loggerIndex) {
 115         loggers[loggerIndex - 1].removeAppender(appenders[handlerIndex - 1]);
 116     }
 117
 118 }